So i bought this game yesterday from a site called kinguin and now i am trying to activate my secret pre order forum key. But just cant seem to get it working i have tried the key from kinguin but it doesnt work and i cant find the key elsewhere. Somebody who understand please help!

Sounds like it's the same issue e people who can't get their Humble Store page after preordering from G2A. The code the third party key seller has sent you is either not a Steam CD Key, but rather an activation key, or a CD Key that has already been activated before, so probably a stolen key.

You could ask, but I doubt that they are in a position to help. Those sellers are handling these keys wrong. It can't be a coincidence that so many people can't use them properly after getting the game from websites like that.

If Kinguin sold you a partial product, the best thing to try is to contact their support and see if you can get a refund, or a version that actually gives you the complete product.

Early access to the game is only officially sold on Steam and on Humble Bundle. The complete product comes with the SPF key. If you get it from any other reseller, and there is an issue with the key you got (or missing keys), then contacting their support is your best option.

We will of course offer you support if you purchase from one of the official outlets, or have been gifted the entire product. We don't have a way to generate an SPF key that isn't attached to the purchase of the whole product, can't offer key recovery for an account that isn't yours. So, gotta contact Kinguin support.

We do plan on adding Steam workshop support in the future, if that helps.